Barcode apps generate and print. None of them prove a label scans as the product it belongs to. Mastiff scan-checks the exact PDF before you print it and shows the decoded value next to the one you intended. Every UPC, EAN-13, and Code 128 gets a valid check digit and stays unique across your catalog. Presets for Dymo, Brother, Zebra, and Avery print at the exact size you chose, with a calibration page for your printer. Previews, test prints, and reprints are never counted as printed labels.
Correction of product information
If you notice any omissions or errors in the product information on this page, please use the correction request form below.